74 abstracts: zoology 



sketches and an index of stations make it possible to find readily the 

 data for any given locality. The triangulation is tertiary in character, 

 which makes it reasonably certain that the length of any line in the main 

 scheme is known with an accuracy as great as one part in ten thousand. 



C. A. M. 



BOTANY. — Plants of the Alpine Club expedition to the Mount Robson 



Region. Paul C. Standley. The Canadian Alpine Journal, special 



number, pp. 76-79, pi. 1-5. 1913. 



The special number of the Canadian Alpine Journal, of which this 



paper is a part, contains a report upon an expedition undertaken by the 



Alpine Club of Canada in 1911 to explore Jasper Park, Yellowhead Pass, 



and the Mount Robson region in British Columbia and Alberta. The 



first three papers consist of a report upon the mammals, by Mr. N. Hol- 



lister, one upon the reptiles and batrachians by Mr. Hollister, and one 



upon the birds, by Mr. J. H. Riley. 



The plants reported upon were collected by Mr. Hollister and Mr. 

 Riley while engaged primarily in collecting mammals and birds, no 

 attempt being made to secure a complete representation of the flora of 

 the region. One hundred and forty-seven species are listed, five of them 

 {Cryptogramma acrostichoides, Vagnera pumila, Ophrys convallarioides, 

 Orchis rotundifolia, Artemisia laevigata) being illustrated by photo- 

 graphs. Four new species were described from the collections previous 

 to the publication of the final report. Several of the species collected 

 in the Mount Robson region represent notable extensions of range. 



P. C. S. 



ZOOLOGY. — Two interesting mammals from the island of Tobago, West 

 Indies. Austin H. Clark. Annals and Magazine of Natural 

 History, (8), 13, no. 73, pp. 68-70, 1914. 



In this paper are recorded specimens of Marmosa tobagi Thomas, and 

 of Dasypus novemcinctus hopUtes G. M. Allen from the island of Tobago. 



The distribution of the species of the genera Marmosa and Dasypus 

 in the West Indies is given, and it is suggested that, while probably 

 endemic on Tobago, the mouse-opossum was possibly introduced into 

 Grenada and the Grenadines by man. 



A sketch of the history of our knowledge of these interesting forms is 

 given, and it is pointed out that, while armadillos were reported from 

 Tobago so long ago as 1658, and from Grenada in 1667, the animal occur- 

 ring on'CJrenada was not specificall.y determined until 1911, while that 

 on Tobago has up to the present time remained quite unnoticed by 

 mammalogists. A. H. C. 



